Species
Ptychagnostus affinis (Brøgger, 1878)
Synonymy list
1878 Agnostus punctuosus, Ang. var. affinis — Brøgger , pp. 68 , fig. 5:2
2023 Ptychagnostus affinis (Brøgger, 1878) — Weidner , pp. 42 , fig. 23A–N
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Subphylum | Trilobita |
| Order | Agnostida |
| Family | Ptychagnostidae |
| Genus | Ptychagnostus |
| Species | affinis |